well finally we have the answer. 1. You cant search in WET and 2. Outlook doesnt work with WET.
WET doesnot restore outlook files per definition. SO searching for PST files just comes up with the cleanly installed outlook. WHich means an empty pst file.

thanks anyway

lesson learned:
1. Dont trust MS per definition even it it guarantees to be working with it's own applications
2. Backup before you transfer or coppy anything.